Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
060078lightly pollutedexcellent121excellent
050063lightly pollutedexcellent91excellent
040053goodexcellent91excellent
030053goodexcellent81excellent
020059goodexcellent81excellent
010078lightly pollutedexcellent111excellent
000081lightly pollutedexcellent101excellent
230070lightly pollutedexcellent101excellent
220060goodexcellent101excellent
210049goodexcellent91excellent
200034goodexcellent51excellent
190030goodexcellent51excellent
180025goodexcellent41excellent
170019excellentexcellent41excellent
160018excellentexcellent41excellent
150025goodexcellent41excellent
140027goodexcellent51excellent
130030goodexcellent61excellent
120034goodexcellent71excellent
110044goodexcellent101excellent
100080lightly pollutedexcellent171excellent
0900104moderately pollutedexcellent201excellent
0800150heavily pollutedgood211excellent
0700152heavily pollutedgood211excellent